Target the parts of your applications that take the most time, by Martyn Honeyford "Improving the performance of your applications is rarely a wasted effort, but it's not always clear which functions the program is spending most of its execution time on. Learn how to pinpoint performance bottlenecks using gprof for both user-space and system calls on Linux®."
by Bill Green. using the Sobel and the Laplace methods."Edges characterize boundaries and are therefore a problem of fundamental importance in image processing"
xplains the use and usage of the inline assembly feature provided by GCC. There are only two prerequisites for reading this article, and that’s obviously a basic knowledge of x86 assembly language and C.